Voir la documentation de bartScore
The bartProbit action fits a probit Bayesian Additive Regression Trees (BART) model to data where the response variable is binary. This is particularly useful for classification problems where the outcome is one of two categories (e.g., yes/no, success/failure, 0/1). The probit model assumes that the binary outcome is the result of an unobserved continuous latent variable following a standard normal distribution. The BART model itself is a non-parametric, ensemble method that combines multiple simple regression trees to create a powerful predictive model, offering a flexible alternative to traditional parametric models.
Die Aktion bartGauss im Aktionssatz Bayesian Additive Regression Trees (bart) passt Modelle für Bayes'sche additive Regressionsbäume (BART) an normalverteilte Antwortdaten an. BART ist eine nichtparametrische Regressionsmethode, die einen Ensemble-Ansatz verwendet, bei dem das Modell eine Summe vieler schwacher Lerner (Regressionsbäume) ist. Diese Methode ist besonders effektiv bei der Erfassung komplexer nichtlinearer Beziehungen zwischen Prädiktoren und der Antwortvariablen und bietet gleichzeitig eine Quantifizierung der Unsicherheit durch ihren Bayes'schen Rahmen.
The bartGauss action fits Bayesian additive regression trees (BART) models for a continuous response variable that is assumed to follow a normal distribution. BART is a non-parametric regression method that uses a sum of regression trees to model the relationship between predictors and a response. It is particularly effective for capturing complex, non-linear relationships and interactions in the data without requiring pre-specification of the model form. The method is Bayesian, meaning it uses priors for the model parameters and provides a full posterior distribution for predictions, allowing for robust uncertainty quantification.